申请人:BASF SE
公开号:US20160090485A1
公开(公告)日:2016-03-31
Described is a process for preparing urethane (meth)acrylates. In a first step, a hydroxyalkyl (meth)acrylate (A) is reacted with a lactone (B) in the presence of at least one catalyst (C), selected from the group consisting of iron compounds, titanium compounds, aluminum compounds, zirconium compounds, manganese compounds, nickel compounds, zinc compounds, cobalt compounds, and bismuth compounds to provide a product; and, in a further step, the product is reacted with a polyisocyanate (D) which comprises at least one hydroxyalkyl (meth)acrylate bonded via an allophanate group.
描述了一种制备脲(甲基)丙烯酸酯的过程。在第一步中,通过在至少一个催化剂(C)的存在下,将羟基烷基(甲基)丙烯酸酯(A)与内酯(B)反应,所述催化剂选自铁化合物、钛化合物、铝化合物、锆化合物、锰化合物、镍化合物、锌化合物、钴化合物和铋化合物组成的群体,以提供产物;在进一步的步骤中,将产物与至少含有通过异氰酸酯基团连接的羟基烷基(甲基)丙烯酸酯的多异氰酸酯(D)反应。